4.88% is the change from 635 to 666
Calculation steps:
[( 666 - 635 ) ÷ 635] x 100 = 4.88%
Formula
Percentage change = [(666 - 635) / 635] x 100
Subtract the new number by the original number
666 - 635 = 31
31 ÷ 635 = 0.048818897637795275
0.048818897637795275 x 100 = 4.88%